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Qt UI for an existing C ++ project

I already wrote a program in C ++, and I would like to write a graphical interface for it. I understand that Qt is a great tool, but Qt has its own classes that confuse me. for example: instead of String, Qt has a class called QString ..

I am wondering if I can mix C ++ code and Qt code in C ++?

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Yes, you can easily mix Qt and STL.

The graphical interface takes QString, but silently creates these forms std::stringor char*, QStringsreturned from the Qt, they can be converted using toStdString()or toAscii().

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edit: thanks bill

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Personally, I like QString more than std :: string, it is easier to use and more powerful.

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Yes, you can.

I really made a Qt-GUI wrapper for a set of C-based functions. There are no problems with Qt integration, only a low level of C (which is a memory leak ...).

See here: http://code.google.com/p/qhocr/

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